/Engine/Source/Runtime/Engine/Classes/Kismet/BlueprintPathsLibrary.h
Converts a sandbox (in Saved/Sandboxes) path to a normal path.
static [FString](API\Runtime\Core\Containers\FString) ConvertFromSandboxPath ( const [FString](API\Runtime\Core\Containers\FString) & InPath, const [FString](API\Runtime\Core\Containers\FString) & InSandboxName )